--- /dev/null
+// SPDX-License-Identifier: GPL-2.0-only
+//
+// rt1316-sdw.c -- rt1316 SDCA ALSA SoC amplifier audio driver
+//
+// Copyright(c) 2021 Realtek Semiconductor Corp.
+//
+//
+#include <linux/delay.h>
+#include <linux/device.h>
+#include <linux/pm_runtime.h>
+#include <linux/mod_devicetable.h>
+#include <linux/module.h>
+#include <linux/regmap.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc-dapm.h>
+#include <sound/initval.h>
+#include "rt1316-sdw.h"
+
+static const struct reg_default rt1316_reg_defaults[] = {
+ { 0x3004, 0x00 },
+ { 0x3005, 0x00 },
+ { 0x3206, 0x00 },
+ { 0xc001, 0x00 },
+ { 0xc002, 0x00 },
+ { 0xc003, 0x00 },
+ { 0xc004, 0x00 },
+ { 0xc005, 0x00 },
+ { 0xc006, 0x00 },
+ { 0xc007, 0x00 },
+ { 0xc008, 0x00 },
+ { 0xc009, 0x00 },
+ { 0xc00a, 0x00 },
+ { 0xc00b, 0x00 },
+ { 0xc00c, 0x00 },
+ { 0xc00d, 0x00 },
+ { 0xc00e, 0x00 },
+ { 0xc00f, 0x00 },
+ { 0xc010, 0xa5 },
+ { 0xc011, 0x00 },
+ { 0xc012, 0xff },
+ { 0xc013, 0xff },
+ { 0xc014, 0x40 },
+ { 0xc015, 0x00 },
+ { 0xc016, 0x00 },
+ { 0xc017, 0x00 },
+ { 0xc605, 0x30 },
+ { 0xc700, 0x0a },
+ { 0xc701, 0xaa },
+ { 0xc702, 0x1a },
+ { 0xc703, 0x0a },
+ { 0xc710, 0x80 },
+ { 0xc711, 0x00 },
+ { 0xc712, 0x3e },
+ { 0xc713, 0x80 },
+ { 0xc714, 0x80 },
+ { 0xc715, 0x06 },
+ { 0xd101, 0x00 },
+ { 0xd102, 0x30 },
+ { 0xd103, 0x00 },
+ { SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_UDMPU21, RT1316_SDCA_CTL_UDMPU_CLUSTER, 0), 0x00 },
+ { SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_FU21, RT1316_SDCA_CTL_FU_MUTE, CH_L), 0x01 },
+ { SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_FU21, RT1316_SDCA_CTL_FU_MUTE, CH_R), 0x01 },
+ { SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_XU24, RT1316_SDCA_CTL_BYPASS, 0), 0x01 },
+ { SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE23, RT1316_SDCA_CTL_REQ_POWER_STATE, 0), 0x03 },
+ { SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE22, RT1316_SDCA_CTL_REQ_POWER_STATE, 0), 0x03 },
+ { SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE24, RT1316_SDCA_CTL_REQ_POWER_STATE, 0), 0x03 },
+};
+
+static const struct reg_sequence rt1316_blind_write[] = {
+ { 0xc710, 0x17 },
+ { 0xc711, 0x80 },
+ { 0xc712, 0x26 },
+ { 0xc713, 0x06 },
+ { 0xc714, 0x80 },
+ { 0xc715, 0x06 },
+ { 0xc702, 0x0a },
+ { 0xc703, 0x0a },
+ { 0xc001, 0x45 },
+ { 0xc003, 0x00 },
+ { 0xc004, 0x11 },
+ { 0xc005, 0x00 },
+ { 0xc006, 0x00 },
+ { 0xc106, 0x00 },
+ { 0xc007, 0x11 },
+ { 0xc008, 0x11 },
+ { 0xc009, 0x00 },
+
+ { 0x2f0a, 0x00 },
+ { 0xd101, 0xf0 },
+ { 0xd103, 0x9b },
+ { 0x2f36, 0x8e },
+ { 0x3206, 0x80 },
+ { 0x3211, 0x0b },
+ { 0x3216, 0x06 },
+ { 0xc614, 0x20 },
+ { 0xc615, 0x0a },
+ { 0xc616, 0x02 },
+ { 0xc617, 0x00 },
+ { 0xc60b, 0x10 },
+ { 0xc60e, 0x05 },
+ { 0xc102, 0x00 },
+ { 0xc090, 0xb0 },
+ { 0xc00f, 0x01 },
+ { 0xc09c, 0x7b },
+
+ { 0xc602, 0x07 },
+ { 0xc603, 0x07 },
+ { 0xc0a3, 0x71 },
+ { 0xc00b, 0x30 },
+ { 0xc093, 0x80 },
+ { 0xc09d, 0x80 },
+ { 0xc0b0, 0x77 },
+ { 0xc010, 0xa5 },
+ { 0xc050, 0x83 },
+ { 0x2f55, 0x03 },
+ { 0x3217, 0xb5 },
+ { 0x3202, 0x02 },
+
+ { SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_XU24, RT1316_SDCA_CTL_BYPASS, 0), 0x00 },
+
+ /* for IV sense */
+ { 0x2232, 0x80 },
+ { 0xc0b0, 0x77 },
+ { 0xc011, 0x00 },
+ { 0xc020, 0x00 },
+ { 0xc023, 0x00 },
+ { 0x3101, 0x00 },
+ { 0x3004, 0xa0 },
+ { 0x3005, 0xb1 },
+ { 0xc007, 0x11 },
+ { 0xc008, 0x11 },
+ { 0xc009, 0x00 },
+ { 0xc022, 0xd6 },
+ { 0xc025, 0xd6 },
+
+ { 0xd001, 0x03 },
+ { 0xd002, 0xbf },
+ { 0xd003, 0x03 },
+ { 0xd004, 0xbf },
+};
+
+static bool rt1316_readable_register(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case 0x2f0a:
+ case 0x2f36:
+ case 0x3203 ... 0x320e:
+ case 0xc000 ... 0xc7b4:
+ case 0xcf00 ... 0xcf03:
+ case 0xd101 ... 0xd103:
+ case SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_UDMPU21, RT1316_SDCA_CTL_UDMPU_CLUSTER, 0):
+ case SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_FU21, RT1316_SDCA_CTL_FU_MUTE, CH_L):
+ case SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_FU21, RT1316_SDCA_CTL_FU_MUTE, CH_R):
+ case SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE23, RT1316_SDCA_CTL_REQ_POWER_STATE, 0):
+ case SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE27, RT1316_SDCA_CTL_REQ_POWER_STATE, 0):
+ case SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE22, RT1316_SDCA_CTL_REQ_POWER_STATE, 0):
+ case SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE24, RT1316_SDCA_CTL_REQ_POWER_STATE, 0):
+ return true;
+ default:
+ return false;
+ }
+}
+
+static bool rt1316_volatile_register(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case 0xc000:
+ case 0xc093:
+ case 0xc09d:
+ case 0xc0a3:
+ case 0xc201:
+ case 0xc427 ... 0xc428:
+ case 0xd102:
+ return true;
+ default:
+ return false;
+ }
+}
+
+static const struct regmap_config rt1316_sdw_regmap = {
+ .reg_bits = 32,
+ .val_bits = 8,
+ .readable_reg = rt1316_readable_register,
+ .volatile_reg = rt1316_volatile_register,
+ .max_register = 0x4108ffff,
+ .reg_defaults = rt1316_reg_defaults,
+ .num_reg_defaults = ARRAY_SIZE(rt1316_reg_defaults),
+ .cache_type = REGCACHE_RBTREE,
+ .use_single_read = true,
+ .use_single_write = true,
+};
+
+static int rt1316_read_prop(struct sdw_slave *slave)
+{
+ struct sdw_slave_prop *prop = &slave->prop;
+ int nval;
+ int i, j;
+ u32 bit;
+ unsigned long addr;
+ struct sdw_dpn_prop *dpn;
+
+ prop->scp_int1_mask = SDW_SCP_INT1_BUS_CLASH | SDW_SCP_INT1_PARITY;
+ prop->quirks = SDW_SLAVE_QUIRKS_INVALID_INITIAL_PARITY;
+ prop->is_sdca = true;
+
+ prop->paging_support = true;
+
+ /* first we need to allocate memory for set bits in port lists */
+ prop->source_ports = 0x04; /* BITMAP: 00000100 */
+ prop->sink_ports = 0x2; /* BITMAP: 00000010 */
+
+ nval = hweight32(prop->source_ports);
+ prop->src_dpn_prop = devm_kcalloc(&slave->dev, nval,
+ sizeof(*prop->src_dpn_prop), GFP_KERNEL);
+ if (!prop->src_dpn_prop)
+ return -ENOMEM;
+
+ i = 0;
+ dpn = prop->src_dpn_prop;
+ addr = prop->source_ports;
+ for_each_set_bit(bit, &addr, 32) {
+ dpn[i].num = bit;
+ dpn[i].type = SDW_DPN_FULL;
+ dpn[i].simple_ch_prep_sm = true;
+ dpn[i].ch_prep_timeout = 10;
+ i++;
+ }
+
+ /* do this again for sink now */
+ nval = hweight32(prop->sink_ports);
+ prop->sink_dpn_prop = devm_kcalloc(&slave->dev, nval,
+ sizeof(*prop->sink_dpn_prop), GFP_KERNEL);
+ if (!prop->sink_dpn_prop)
+ return -ENOMEM;
+
+ j = 0;
+ dpn = prop->sink_dpn_prop;
+ addr = prop->sink_ports;
+ for_each_set_bit(bit, &addr, 32) {
+ dpn[j].num = bit;
+ dpn[j].type = SDW_DPN_FULL;
+ dpn[j].simple_ch_prep_sm = true;
+ dpn[j].ch_prep_timeout = 10;
+ j++;
+ }
+
+ /* set the timeout values */
+ prop->clk_stop_timeout = 20;
+
+ dev_dbg(&slave->dev, "%s\n", __func__);
+
+ return 0;
+}
+
+static int rt1316_io_init(struct device *dev, struct sdw_slave *slave)
+{
+ struct rt1316_sdw_priv *rt1316 = dev_get_drvdata(dev);
+
+ if (rt1316->hw_init)
+ return 0;
+
+ if (rt1316->first_hw_init) {
+ regcache_cache_only(rt1316->regmap, false);
+ regcache_cache_bypass(rt1316->regmap, true);
+ } else {
+ /*
+ * PM runtime is only enabled when a Slave reports as Attached
+ */
+
+ /* set autosuspend parameters */
+ pm_runtime_set_autosuspend_delay(&slave->dev, 3000);
+ pm_runtime_use_autosuspend(&slave->dev);
+
+ /* update count of parent 'active' children */
+ pm_runtime_set_active(&slave->dev);
+
+ /* make sure the device does not suspend immediately */
+ pm_runtime_mark_last_busy(&slave->dev);
+
+ pm_runtime_enable(&slave->dev);
+ }
+
+ pm_runtime_get_noresume(&slave->dev);
+
+ /* sw reset */
+ regmap_write(rt1316->regmap, 0xc000, 0x02);
+
+ /* initial settings - blind write */
+ regmap_multi_reg_write(rt1316->regmap, rt1316_blind_write,
+ ARRAY_SIZE(rt1316_blind_write));
+
+ if (rt1316->first_hw_init) {
+ regcache_cache_bypass(rt1316->regmap, false);
+ regcache_mark_dirty(rt1316->regmap);
+ } else
+ rt1316->first_hw_init = true;
+
+ /* Mark Slave initialization complete */
+ rt1316->hw_init = true;
+
+ pm_runtime_mark_last_busy(&slave->dev);
+ pm_runtime_put_autosuspend(&slave->dev);
+
+ dev_dbg(&slave->dev, "%s hw_init complete\n", __func__);
+ return 0;
+}
+
+static int rt1316_update_status(struct sdw_slave *slave,
+ enum sdw_slave_status status)
+{
+ struct rt1316_sdw_priv *rt1316 = dev_get_drvdata(&slave->dev);
+
+ /* Update the status */
+ rt1316->status = status;
+
+ if (status == SDW_SLAVE_UNATTACHED)
+ rt1316->hw_init = false;
+
+ /*
+ * Perform initialization only if slave status is present and
+ * hw_init flag is false
+ */
+ if (rt1316->hw_init || rt1316->status != SDW_SLAVE_ATTACHED)
+ return 0;
+
+ /* perform I/O transfers required for Slave initialization */
+ return rt1316_io_init(&slave->dev, slave);
+}
+
+static int rt1316_classd_event(struct snd_soc_dapm_widget *w,
+ struct snd_kcontrol *kcontrol, int event)
+{
+ struct snd_soc_component *component =
+ snd_soc_dapm_to_component(w->dapm);
+ struct rt1316_sdw_priv *rt1316 = snd_soc_component_get_drvdata(component);
+ unsigned char ps0 = 0x0, ps3 = 0x3;
+
+ switch (event) {
+ case SND_SOC_DAPM_POST_PMU:
+ regmap_write(rt1316->regmap,
+ SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE23,
+ RT1316_SDCA_CTL_REQ_POWER_STATE, 0),
+ ps0);
+ regmap_write(rt1316->regmap,
+ SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE27,
+ RT1316_SDCA_CTL_REQ_POWER_STATE, 0),
+ ps0);
+ regmap_write(rt1316->regmap,
+ SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE22,
+ RT1316_SDCA_CTL_REQ_POWER_STATE, 0),
+ ps0);
+ break;
+ case SND_SOC_DAPM_PRE_PMD:
+ regmap_write(rt1316->regmap,
+ SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE23,
+ RT1316_SDCA_CTL_REQ_POWER_STATE, 0),
+ ps3);
+ regmap_write(rt1316->regmap,
+ SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE27,
+ RT1316_SDCA_CTL_REQ_POWER_STATE, 0),
+ ps3);
+ regmap_write(rt1316->regmap,
+ SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE22,
+ RT1316_SDCA_CTL_REQ_POWER_STATE, 0),
+ ps3);
+ break;
+
+ default:
+ break;
+ }
+
+ return 0;
+}
+
+static int rt1316_pde24_event(struct snd_soc_dapm_widget *w,
+ struct snd_kcontrol *kcontrol, int event)
+{
+ struct snd_soc_component *component =
+ snd_soc_dapm_to_component(w->dapm);
+ struct rt1316_sdw_priv *rt1316 = snd_soc_component_get_drvdata(component);
+ unsigned char ps0 = 0x0, ps3 = 0x3;
+
+ switch (event) {
+ case SND_SOC_DAPM_POST_PMU:
+ regmap_write(rt1316->regmap,
+ SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE24,
+ RT1316_SDCA_CTL_REQ_POWER_STATE, 0),
+ ps0);
+ break;
+ case SND_SOC_DAPM_PRE_PMD:
+ regmap_write(rt1316->regmap,
+ SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE24,
+ RT1316_SDCA_CTL_REQ_POWER_STATE, 0),
+ ps3);
+ break;
+ }
+ return 0;
+}
+
+static const char * const rt1316_rx_data_ch_select[] = {
+ "L,R",
+ "L,L",
+ "L,R",
+ "L,L+R",
+ "R,L",
+ "R,R",
+ "R,L+R",
+ "L+R,L",
+ "L+R,R",
+ "L+R,L+R",
+};
+
+static SOC_ENUM_SINGLE_DECL(rt1316_rx_data_ch_enum,
+ SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_UDMPU21, RT1316_SDCA_CTL_UDMPU_CLUSTER, 0), 0,
+ rt1316_rx_data_ch_select);
+
+static const struct snd_kcontrol_new rt1316_snd_controls[] = {
+
+ /* I2S Data Channel Selection */
+ SOC_ENUM("RX Channel Select", rt1316_rx_data_ch_enum),
+
+ /* XU24 Bypass Control */
+ SOC_SINGLE("XU24 Bypass Switch",
+ SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_XU24, RT1316_SDCA_CTL_BYPASS, 0), 0, 1, 0),
+
+ /* Left/Right IV tag */
+ SOC_SINGLE("Left V Tag Select", 0x3004, 0, 7, 0),
+ SOC_SINGLE("Left I Tag Select", 0x3004, 4, 7, 0),
+ SOC_SINGLE("Right V Tag Select", 0x3005, 0, 7, 0),
+ SOC_SINGLE("Right I Tag Select", 0x3005, 4, 7, 0),
+
+ /* IV mixer Control */
+ SOC_DOUBLE("Isense Mixer Switch", 0xc605, 2, 0, 1, 1),
+ SOC_DOUBLE("Vsense Mixer Switch", 0xc605, 3, 1, 1, 1),
+};
+
+static const struct snd_kcontrol_new rt1316_sto_dac =
+ SOC_DAPM_DOUBLE_R("Switch",
+ SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_FU21, RT1316_SDCA_CTL_FU_MUTE, CH_L),
+ SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_FU21, RT1316_SDCA_CTL_FU_MUTE, CH_R),
+ 0, 1, 1);
+
+static const struct snd_soc_dapm_widget rt1316_dapm_widgets[] = {
+ /* Audio Interface */
+ SND_SOC_DAPM_AIF_IN("DP1RX", "DP1 Playback", 0, SND_SOC_NOPM, 0, 0),
+ SND_SOC_DAPM_AIF_OUT("DP2TX", "DP2 Capture", 0, SND_SOC_NOPM, 0, 0),
+
+ /* Digital Interface */
+ SND_SOC_DAPM_SWITCH("DAC", SND_SOC_NOPM, 0, 0, &rt1316_sto_dac),
+
+ /* Output Lines */
+ SND_SOC_DAPM_PGA_E("CLASS D", SND_SOC_NOPM, 0, 0, NULL, 0,
+ rt1316_classd_event,
+ SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMU),
+ SND_SOC_DAPM_OUTPUT("SPOL"),
+ SND_SOC_DAPM_OUTPUT("SPOR"),
+
+ SND_SOC_DAPM_SUPPLY("PDE 24", SND_SOC_NOPM, 0, 0,
+ rt1316_pde24_event,
+ SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
+ SND_SOC_DAPM_PGA("I Sense", SND_SOC_NOPM, 0, 0, NULL, 0),
+ SND_SOC_DAPM_PGA("V Sense", SND_SOC_NOPM, 0, 0, NULL, 0),
+ SND_SOC_DAPM_SIGGEN("I Gen"),
+ SND_SOC_DAPM_SIGGEN("V Gen"),
+};
+
+static const struct snd_soc_dapm_route rt1316_dapm_routes[] = {
+ { "DAC", "Switch", "DP1RX" },
+ { "CLASS D", NULL, "DAC" },
+ { "SPOL", NULL, "CLASS D" },
+ { "SPOR", NULL, "CLASS D" },
+
+ { "I Sense", NULL, "I Gen" },
+ { "V Sense", NULL, "V Gen" },
+ { "I Sense", NULL, "PDE 24" },
+ { "V Sense", NULL, "PDE 24" },
+ { "DP2TX", NULL, "I Sense" },
+ { "DP2TX", NULL, "V Sense" },
+};
+
+static int rt1316_set_sdw_stream(struct snd_soc_dai *dai, void *sdw_stream,
+ int direction)
+{
+ struct sdw_stream_data *stream;
+
+ if (!sdw_stream)
+ return 0;
+
+ stream = kzalloc(sizeof(*stream), GFP_KERNEL);
+ if (!stream)
+ return -ENOMEM;
+
+ stream->sdw_stream = sdw_stream;
+
+ /* Use tx_mask or rx_mask to configure stream tag and set dma_data */
+ if (direction == SNDRV_PCM_STREAM_PLAYBACK)
+ dai->playback_dma_data = stream;
+ else
+ dai->capture_dma_data = stream;
+
+ return 0;
+}
+
+static void rt1316_sdw_shutdown(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ struct sdw_stream_data *stream;
+
+ stream = snd_soc_dai_get_dma_data(dai, substream);
+ snd_soc_dai_set_dma_data(dai, substream, NULL);
+ kfree(stream);
+}
+
+static int rt1316_sdw_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)
+{
+ struct snd_soc_component *component = dai->component;
+ struct rt1316_sdw_priv *rt1316 =
+ snd_soc_component_get_drvdata(component);
+ struct sdw_stream_config stream_config;
+ struct sdw_port_config port_config;
+ enum sdw_data_direction direction;
+ struct sdw_stream_data *stream;
+ int retval, port, num_channels, ch_mask;
+
+ dev_dbg(dai->dev, "%s %s", __func__, dai->name);
+ stream = snd_soc_dai_get_dma_data(dai, substream);
+
+ if (!stream)
+ return -EINVAL;
+
+ if (!rt1316->sdw_slave)
+ return -EINVAL;
+
+ /* SoundWire specific configuration */
+ /* port 1 for playback */
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+ direction = SDW_DATA_DIR_RX;
+ port = 1;
+ } else {
+ direction = SDW_DATA_DIR_TX;
+ port = 2;
+ }
+
+ num_channels = params_channels(params);
+ ch_mask = (1 << num_channels) - 1;
+
+ stream_config.frame_rate = params_rate(params);
+ stream_config.ch_count = num_channels;
+ stream_config.bps = snd_pcm_format_width(params_format(params));
+ stream_config.direction = direction;
+
+ port_config.ch_mask = ch_mask;
+ port_config.num = port;
+
+ retval = sdw_stream_add_slave(rt1316->sdw_slave, &stream_config,
+ &port_config, 1, stream->sdw_stream);
+ if (retval) {
+ dev_err(dai->dev, "Unable to configure port\n");
+ return retval;
+ }
+
+ return 0;
+}
+
+static int rt1316_sdw_pcm_hw_free(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ struct snd_soc_component *component = dai->component;
+ struct rt1316_sdw_priv *rt1316 =
+ snd_soc_component_get_drvdata(component);
+ struct sdw_stream_data *stream =
+ snd_soc_dai_get_dma_data(dai, substream);
+
+ if (!rt1316->sdw_slave)
+ return -EINVAL;
+
+ sdw_stream_remove_slave(rt1316->sdw_slave, stream->sdw_stream);
+ return 0;
+}
+
+/*
+ * slave_ops: callbacks for get_clock_stop_mode, clock_stop and
+ * port_prep are not defined for now
+ */
+static struct sdw_slave_ops rt1316_slave_ops = {
+ .read_prop = rt1316_read_prop,
+ .update_status = rt1316_update_status,
+};
+
+static const struct snd_soc_component_driver soc_component_sdw_rt1316 = {
+ .controls = rt1316_snd_controls,
+ .num_controls = ARRAY_SIZE(rt1316_snd_controls),
+ .dapm_widgets = rt1316_dapm_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(rt1316_dapm_widgets),
+ .dapm_routes = rt1316_dapm_routes,
+ .num_dapm_routes = ARRAY_SIZE(rt1316_dapm_routes),
+};
+
+static const struct snd_soc_dai_ops rt1316_aif_dai_ops = {
+ .hw_params = rt1316_sdw_hw_params,
+ .hw_free = rt1316_sdw_pcm_hw_free,
+ .set_sdw_stream = rt1316_set_sdw_stream,
+ .shutdown = rt1316_sdw_shutdown,
+};
+
+#define RT1316_STEREO_RATES SNDRV_PCM_RATE_48000
+#define RT1316_FORMATS (SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S16_LE | \
+ SNDRV_PCM_FMTBIT_S24_LE)
+
+static struct snd_soc_dai_driver rt1316_sdw_dai[] = {
+ {
+ .name = "rt1316-aif",
+ .playback = {
+ .stream_name = "DP1 Playback",
+ .channels_min = 1,
+ .channels_max = 2,
+ .rates = RT1316_STEREO_RATES,
+ .formats = RT1316_FORMATS,
+ },
+ .capture = {
+ .stream_name = "DP2 Capture",
+ .channels_min = 1,
+ .channels_max = 2,
+ .rates = RT1316_STEREO_RATES,
+ .formats = RT1316_FORMATS,
+ },
+ .ops = &rt1316_aif_dai_ops,
+ },
+};
+
+static int rt1316_sdw_init(struct device *dev, struct regmap *regmap,
+ struct sdw_slave *slave)
+{
+ struct rt1316_sdw_priv *rt1316;
+ int ret;
+
+ rt1316 = devm_kzalloc(dev, sizeof(*rt1316), GFP_KERNEL);
+ if (!rt1316)
+ return -ENOMEM;
+
+ dev_set_drvdata(dev, rt1316);
+ rt1316->sdw_slave = slave;
+ rt1316->regmap = regmap;
+
+ /*
+ * Mark hw_init to false
+ * HW init will be performed when device reports present
+ */
+ rt1316->hw_init = false;
+ rt1316->first_hw_init = false;
+
+ ret = devm_snd_soc_register_component(dev,
+ &soc_component_sdw_rt1316,
+ rt1316_sdw_dai,
+ ARRAY_SIZE(rt1316_sdw_dai));
+
+ dev_dbg(&slave->dev, "%s\n", __func__);
+
+ return ret;
+}
+
+static int rt1316_sdw_probe(struct sdw_slave *slave,
+ const struct sdw_device_id *id)
+{
+ struct regmap *regmap;
+
+ /* Regmap Initialization */
+ regmap = devm_regmap_init_sdw(slave, &rt1316_sdw_regmap);
+ if (IS_ERR(regmap))
+ return PTR_ERR(regmap);
+
+ return rt1316_sdw_init(&slave->dev, regmap, slave);
+}
+
+static const struct sdw_device_id rt1316_id[] = {
+ SDW_SLAVE_ENTRY_EXT(0x025d, 0x1316, 0x3, 0x1, 0),
+ {},
+};
+MODULE_DEVICE_TABLE(sdw, rt1316_id);
+
+static int __maybe_unused rt1316_dev_suspend(struct device *dev)
+{
+ struct rt1316_sdw_priv *rt1316 = dev_get_drvdata(dev);
+
+ if (!rt1316->hw_init)
+ return 0;
+
+ regcache_cache_only(rt1316->regmap, true);
+
+ return 0;
+}
+
+#define RT1316_PROBE_TIMEOUT 5000
+
+static int __maybe_unused rt1316_dev_resume(struct device *dev)
+{
+ struct sdw_slave *slave = dev_to_sdw_dev(dev);
+ struct rt1316_sdw_priv *rt1316 = dev_get_drvdata(dev);
+ unsigned long time;
+
+ if (!rt1316->hw_init)
+ return 0;
+
+ if (!slave->unattach_request)
+ goto regmap_sync;
+
+ time = wait_for_completion_timeout(&slave->initialization_complete,
+ msecs_to_jiffies(RT1316_PROBE_TIMEOUT));
+ if (!time) {
+ dev_err(&slave->dev, "Initialization not complete, timed out\n");
+ return -ETIMEDOUT;
+ }
+
+regmap_sync:
+ slave->unattach_request = 0;
+ regcache_cache_only(rt1316->regmap, false);
+ regcache_sync(rt1316->regmap);
+
+ return 0;
+}
+
+static const struct dev_pm_ops rt1316_pm = {
+ SET_SYSTEM_SLEEP_PM_OPS(rt1316_dev_suspend, rt1316_dev_resume)
+ SET_RUNTIME_PM_OPS(rt1316_dev_suspend, rt1316_dev_resume, NULL)
+};
+
+static struct sdw_driver rt1316_sdw_driver = {
+ .driver = {
+ .name = "rt1316-sdca",
+ .owner = THIS_MODULE,
+ .pm = &rt1316_pm,
+ },
+ .probe = rt1316_sdw_probe,
+ .ops = &rt1316_slave_ops,
+ .id_table = rt1316_id,
+};
+module_sdw_driver(rt1316_sdw_driver);
+
+MODULE_DESCRIPTION("ASoC RT1316 driver SDCA SDW");
+MODULE_AUTHOR("Shuming Fan <shumingf@realtek.com>");
+MODULE_LICENSE("GPL");
git.samba.org / sfrench / cifs-2.6.git / blobdiff